Home / 1,008,935,383.70-1,513,403,075.55-619,495,418.90

Finding the Fourth Proportional to 1,008,935,383.70, 1,513,403,075.55 and 619,495,418.90

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Solution

The fourth proportional to 1,008,935,383.70, 1,513,403,075.55 and 619,495,418.90 is: 929,243,128.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,008,935,383.70 : 1,513,403,075.55 = 619,495,418.90 : x
  2. Step 2: Convert to fraction form
    1,008,935,383.70/1,513,403,075.55 = 619,495,418.90/x
  3. Step 3: Cross multiply
    1,008,935,383.70x = 1,513,403,075.55 × 619,495,418.90
  4. Step 4: Simplify right side
    1,008,935,383.70x = 937,546,272,252,395,520
  5. Step 5: Solve for x
    x = 937,546,272,252,395,520/1,008,935,383.70
  6. Step 6: Final answer
    x = 929,243,128.35

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Half scale
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Double scale
Find fourth proportional to 1,008,935,384.70, 1,513,403,077.05 and 619,495,419.90
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.